3066: Why are dewdrops not formed on a cloudy night?
(a) Clouds absorb the radiation released from the Earths surface.
(b) Clouds reflect back the Earths radiation.
(c) The Earths surface would have low temperature on cloudy nights.
(d) Clouds deflect the blowing wind to ground level.
3067: In which one of the following districts, have large reserves of diamond bearing kimberlite been discovered in the recent past ?
(a) Raipur
(b) Warangal
(c) Hoshangabad
(d) Sambalpur
3068: The research work of Paul Lauterbur and Peter Mansfield, the Nobel Prize winners for Medicine in 2003, relates to:
(a) Control of AIDS
(b) Magnetic resonance imaging
(c) Respiratory diseases
(d) Genetic engineering
3069: Among the Indian languages, which one is spoken maximum in the world after Hindi?
(a) Malayalam
(b) Tamil
(c) Telugu
(d) Bengali
3070: Sex of a child is determined by the:
(a) Chromosomes of father
(b) Chromosomes of mother
(c) Rh factor of parents
(d) None of these